FIELD: manufacture of mat from chopped yarns, said mat being used for reinforcement of thermosetting resins.
SUBSTANCE: method involves succession of steps: dispersion of chopped yarns in recycling water, which are dried after gluing through in gluing liquid containing organosilane and film-former; forming web by directing dispersion over molding net through which recycling water flows, with yarns being retained on said net; applying binder and providing thermal processing; obtaining mats of chopped yarns having uniform weight per unit of area, on the total, within the range of 50-1,100 g/m2.
EFFECT: provision for producing of mats having uniform characteristics with minimum amount of elementary filaments.
25 cl, 1 dwg, 2 ex
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